public class ImageToImageDrawer
extends java.lang.Object
implements java.awt.image.ImageObserver
Constructor and Description |
---|
ImageToImageDrawer(java.awt.Image sourceImage,
java.awt.image.BufferedImage targetImage,
boolean scale)
Constructor
|
Modifier and Type | Method and Description |
---|---|
java.awt.Image |
getSourceImage()
Get the source image.
|
java.awt.image.BufferedImage |
getTargetImage()
Get the target image.
|
boolean |
imageUpdate(java.awt.Image img,
int infoflags,
int x,
int y,
int width,
int height)
This method is called when information about an image which was
previously requested using an asynchronous interface becomes
available.
|
public ImageToImageDrawer(@NotNull java.awt.Image sourceImage, @NotNull java.awt.image.BufferedImage targetImage, boolean scale)
sourceImage
- image to draw, possibly not yet completely loadedtargetImage
- target image to which the source image is drawnscale
- scale source image to fit to target image?@NotNull public java.awt.Image getSourceImage()
@NotNull public java.awt.image.BufferedImage getTargetImage()
public boolean imageUpdate(java.awt.Image img, int infoflags, int x, int y, int width, int height)
This method should return true if further updates are needed or false if the required information has been acquired. The image which was being tracked is passed in using the img argument. Various constants are combined to form the infoflags argument which indicates what information about the image is now available. The interpretation of the x, y, width, and height arguments depends on the contents of the infoflags argument.
The infoflags
argument should be the bitwise inclusive
OR of the following flags: WIDTH
,
HEIGHT
, PROPERTIES
, SOMEBITS
,
FRAMEBITS
, ALLBITS
, ERROR
,
ABORT
.
imageUpdate
in interface java.awt.image.ImageObserver
img
- the image being observed.infoflags
- the bitwise inclusive OR of the following
flags: WIDTH
, HEIGHT
,
PROPERTIES
, SOMEBITS
,
FRAMEBITS
, ALLBITS
,
ERROR
, ABORT
.x
- the x coordinate.y
- the y coordinate.width
- the width.height
- the height.false
if the infoflags indicate that the
image is completely loaded; true
otherwise.ImageObserver.WIDTH
,
ImageObserver.HEIGHT
,
ImageObserver.PROPERTIES
,
ImageObserver.SOMEBITS
,
ImageObserver.FRAMEBITS
,
ImageObserver.ALLBITS
,
ImageObserver.ERROR
,
ImageObserver.ABORT
,
Image.getWidth(java.awt.image.ImageObserver)
,
Image.getHeight(java.awt.image.ImageObserver)
,
Graphics.drawImage(java.awt.Image, int, int, java.awt.image.ImageObserver)